CN108084870A - A kind of nano modification elastic coating and preparation method thereof - Google Patents
A kind of nano modification elastic coating and preparation method thereof Download PDFInfo
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- CN108084870A CN108084870A CN201810101587.3A CN201810101587A CN108084870A CN 108084870 A CN108084870 A CN 108084870A CN 201810101587 A CN201810101587 A CN 201810101587A CN 108084870 A CN108084870 A CN 108084870A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/671—Unsaturated compounds having only one group containing active hydrogen
- C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The invention discloses a kind of nano modification elastic coatings and preparation method thereof, the nano modification elastic coating includes polyurethane acroleic acid fat component, end '-aziridino polyurethane cross-linking agent and carbon nanomaterial, the carbon nanomaterial is made of the raw material of following mass percentage：Graphene mass percentage is 4% 6%, and carbon nanotube mass percentage composition is 5% 8%；Carbon nano-onions mass percentage is 3% 8%, and surplus is oxidant.Nano modification elastic coating of the present invention has higher elasticity and rotproofness, it is ensured that adheres to for a long time on underground pipe, has good application effect.
Description
Technical field
The present invention relates to technical field of coatings, and in particular to a kind of nano modification elastic coating and preparation method thereof.
Background technology
Metal erosion is that chemistry or electrochemical reaction occur for the medium of metal surface and ambient enviroment slowly from outward appearance to inner essence, is made
Metal is destroyed, and loses the result of its original performance.Buried pipe is a kind of effect on environment minimum, remote or low coverage
Effective facility from conveying gas, liquid and slurry material.Corrosion process is a kind of abiogenous process, in this process iron
The effect of oxygen is transformed into oxide by water and in air, thus they must entirely use during use it is appropriate
Corrosion resistant coating prevent the environment from corroding it.People, which work out many kinds of measures, prevents and inhibits the corrosion of buried pipe,
In on buried pipe coat coating be a kind of effective method.But the coating applied on current pipeline, it is most of can be because
The variation of temperature throughout the year generates thermal cracking due to expanding with heat and contract with cold and then is split away off from pipeline.
The content of the invention
It is an object of the invention to provide a kind of nano modification elastic coating and preparation method thereof, nano modification elasticity applies
Material has higher elasticity and rotproofness, it is ensured that adheres to for a long time on underground pipe, has good application effect.
To achieve the above object, the present invention provides following technical solution：
A kind of nano modification elastic coating, including polyurethane acroleic acid fat component, end '-aziridino polyurethane cross-linking agent and
Carbon nanomaterial,
The polyurethane acroleic acid fat component, is reacted by the raw material of following mass percentage：
Toluene-2,4-diisocyanate, 4- diisocyanate mass percentage be 10%-20%, isoflurane chalcone diisocyanate quality percentage
Content is 10%-20%, and 2000 mass percentage of polyester is 20%-30%, and 1,4-butanediol mass percentage is 20%-
30%, acrylic acid hydroxyl second fat mass percentage is 19%-20%, dibutyl tin dilaurate mass percentage 0.1%-
0.5%, it is 0.1%-0.5% to methoxyl group phenol mass percentage；
The end '-aziridino polyurethane cross-linking agent, is reacted by the raw material of following mass percentage：
Toluene-2,4-diisocyanate, 4- diisocyanate mass percentage are 49%-50%, and cetomacrogol 1000 mass percentage is
25%-30%, dibutyl tin dilaurate mass percentage are 1%-2%, and 1- '-aziridino ethyl alcohol mass percentages are
10%-15%, butanone mass percentage are 3%-15%；
The carbon nanomaterial is made of the raw material of following mass percentage：
Graphene mass percentage is 4%-6%, and carbon nanotube mass percentage composition is 5%-8%；Carbon nano-onions
Mass percentage is 3%-8%, and surplus is oxidant.
Specifically, the mass percentage of the urethane acrylate component is 65%-80%, holds '-aziridino polyurethane
The mass percentage of crosslinking agent is 10%-15%, and carbon nanomaterial mass percentage is 5%-25%.
Preferably, the nano modification elastic coating further includes antifoaming agent, and the antifoaming agent mass percentage is 0.5%
~2%.
Preferably, the antifoaming agent is made by mineral oil, white carbon, emulsifier, dispersant, aluminum stearate.
Preferably, the nano modification elastic coating further includes antifreezing agent, wetting dispersing agent, coalescents.
Preferably, oxidant used in the carbon nanomaterial is potassium permanganate and the mixture of the concentrated sulfuric acid.
The preparation method of the nano modification elastic coating, includes following step：
(1) polyurethane acroleic acid fat component is prepared：
It is weighed based on following mass percentages：
Toluene-2,4-diisocyanate, 4- diisocyanate mass percentage be 10%-20%, isoflurane chalcone diisocyanate quality percentage
Content is 10%-20%, and 2000 mass percentage of polyester is 20%-30%, and 1,4-butanediol mass percentage is 20%-
30%, acrylic acid hydroxyl second fat mass percentage is 19%-20%, dibutyl tin dilaurate mass percentage 0.1%-
0.5%, it is 0.1%-0.5% to methoxyl group phenol mass percentage；
In the three-necked flask equipped with agitating device, condensing unit and temperature regulating device, add in polyester 2000, in 120 DEG C into
Row vacuum distillation, is dehydrated 1-1.5h；Addition Toluene-2,4-diisocyanate, 4- diisocyanate, isoflurane chalcone diisocyanate and 1,4-butanediol,
Reaction temperature is set as 30 DEG C, adds in dibutyl tin dilaurate, reacts 2-4h；Add in acrylic acid hydroxyl second fat and to methoxyl group
Phenol, adjustment reaction temperature is 40 DEG C, and the reaction was continued；Titrating isocyanic acid, extremely value up to isocyanic acid, extremely less than 0.5%, reacted by value
Into to get polyurethane acroleic acid fat component；
(2) end '-aziridino polyurethane cross-linking agent is prepared：
It is weighed based on following mass percentages：
Toluene-2,4-diisocyanate, 4- diisocyanate mass percentage are 49%-50%, and cetomacrogol 1000 mass percentage is
25%-30%, dibutyl tin laurate mass percentage are 1%-2%, and 1- '-aziridino ethyl alcohol mass percentages are
10%-15%, butanone mass percentage are 3%-15%；
Cetomacrogol 1000 is added in molten with being heated in spherical condensation tube and churned mechanically there-necked flask, under 50 DEG C of water-baths
To change, then add in dibutyl tin laurate, be stirring evenly and then adding into Toluene-2,4-diisocyanate, 4- diisocyanate is warming up to 80 DEG C,
Butanone solution the reaction was continued the 1.5h dissolved with 1- '-aziridino ethyl alcohol is added in after reacting 1.5h, discharging obtains end nitrogen
Third piperidinyl polyurethane cross-linking agent；
(3) carbon nanomaterial is prepared：
It is weighed based on following mass percentages：
Graphene mass percentage is 4%-6%, and carbon nanotube mass percentage composition is 5%-8%；Carbon nano-onions
Mass percentage is 3%-8%, and oxidant mass percentage is 1%-3%, and surplus is deionized water；
Graphene, carbon nanotubes, carbon nano-onions and oxidant are added in three-necked flask, stirred, is then slowly added
Enter deionized water, and be warming up to 98 DEG C, be stirred to react 30min, after being 7 by solution centrifuge washing to filtrate pH, ultrasonic 30min,
It is finally dried using freeze drier, prepares carbon nanomaterial；
(4) nano modification elastic coating is prepared：
It is weighed based on following mass percentages：
The mass percentage of polyurethane acroleic acid fat component is 65%-80%, end '-aziridino polyurethane cross-linking agent
Mass percentage is 10%-15%, and carbon nanomaterial mass percentage is 5%-25%,
Polyurethane acroleic acid fat component and end '-aziridino polyurethane cross-linking agent are mixed, stirred at room temperature in three-necked flask
72h is mixed, carbon nanomaterial is added in three-necked flask, makes it homodisperse in the mixture, prepares nano modification elasticity
Coating.
When prepared by the carbon nanomaterial, graphene, carbon nanotubes, carbon nano-onions and oxidant are added to three-necked flask
In, under conditions of ice-water bath, magneton stirring 3h is warming up to 35 DEG C, stirs 30min, be then slowly added into deionized water afterwards.
It is described to prepare in nano modification elastic coating step, carbon nanomaterial is added in three-necked flask, with high speed point
Disperse 30min under the conditions of scattered machine 7000r/min, then be placed in the ultrasonic cleaning machine of 360W, controlled at room temperature, ultrasonic disperse
1h prepares nano modification elastic coating.
Ammonia ester bond polarity in polyurethane acroleic acid fat component molecular structure of the present invention is stronger, and intermolecular there are oxygen
Key can form effective physical crosslinking point, can improve the physical strength and adhesive force of cured film, and can be with the length of offer flexibility
Chain dihydric alcohol forms microphase-separated, and cured film is made to have better mechanical property.Obtained film has excellent chemicals-resistant
Property and high and low temperature resistance, preferable adhesive force can be generated to the base material of low-surface-energy.
The present invention can be applied to elastic coating due to unique layer structure, graphene as a kind of inorganic nano-filler
In to improve its antiseptic property, play the role of hindering corrosive medium permeation coating.Compared with pure graphene, due to carbon nanometer
The draw ratio of pipe structure is bigger for graphene, and has good mechanical property, and tensile strength is big
In 10 times of steel, conductivity and thermal conductivity are approached with copper；Carbon nano-onions are spherical in standard, and size is inhomogenous, after oxidation
Carbon nano-onions rough surface, it is easier to connected with urethane group, addition graphene, carbon nanotubes and carbon nano-onions are answered
Condensation material, which has, more significantly stops O2And H2The performance of O.Pass through polymer graft grapheme, carbon nanotubes and carbon nanometer ocean
The composite material of green onion improves dispersiveness of the carbon material in organic matrix so that elastic coating has superior anti-corrosive properties and power
Learn performance.
Nano-elastic coating provided by the present invention realizes function by interaction relationship between its contained component and component,
Specifically：First, the hydroxyl that polyurethane acroleic acid fat component passes through its NCO active group and end '-aziridino polyurethane cross-linking agent
Base cross-linking reaction, so as to form fine and close polymeric membrane.Since synthesized crosslinking agent is the macromolecular containing polyurethane segment,
So that nano-elastic coating has good compatibility, water resistance and mechanical property.Secondly, by adding the mixed of carbon nanomaterial
Closing object makes its scattered path for foring multiple physical barriers in the coating, adding corrosive medium infiltration coating arrival substrate
Length so that the time that corrosive medium reaches substrate needs is elongated, achievees the purpose that hinder its infiltration, enhances nano-elastic painting
The antiseptic property of material.
Compared with prior art, beneficial effects of the present invention are as follows：
1st, matrix resin of the present invention is polyurethane acroleic acid fat component, and the ammonia ester bond polarity in molecular structure is stronger, molecule
Between there are oxygen key, effective physical crosslinking point can be formed, the physical strength and adhesive force of cured film can be improved.
2nd, the present invention has synthesized the anionic polyurethane acrylate with carboxyl and the poly- ammonia blocked with '-aziridino
Ester crosslinking agent, the two are cured reaction at room temperature, and gained paint compatibility is good, excellent water resistance.
3rd, carbon nanomaterial is added in coating by the present invention using simple solution blended process, by high-speed stirred and is surpassed
Sound decentralized processing prepares the higher nano high elastic coating of anti-corrosive properties.
Specific embodiment
It is illustrated below in conjunction with to the preferred embodiment of the present invention, it should be understood that preferred embodiment described herein
It is merely to illustrate and explain the present invention, is not intended to limit the present invention.
Embodiment 1
The present embodiment is related to a kind of nano modification elastic coating, gathers including polyurethane acroleic acid fat component, end '-aziridino
Urethane crosslinking agent and carbon nanomaterial, the mass percentage of the polyurethane acroleic acid fat component is 65%, holds '-aziridino
The mass percentage of polyurethane cross-linking agent is 15%, and carbon nanomaterial mass percentage is 20%,
The polyurethane acroleic acid fat component, is reacted by the raw material of following mass percentage：
Toluene-2,4-diisocyanate, 4- diisocyanate mass percentage be 10%-20%, isoflurane chalcone diisocyanate quality percentage
Content is 10%-20%, and 2000 mass percentage of polyester is 20%-30%, and 1,4-butanediol mass percentage is 20%-
30%, acrylic acid hydroxyl second fat mass percentage is 19%-20%, dibutyl tin dilaurate mass percentage 0.1%-
0.5%, it is 0.1%-0.5% to methoxyl group phenol mass percentage
The end '-aziridino polyurethane cross-linking agent, is reacted by the raw material of following mass percentage：
Toluene-2,4-diisocyanate, 4- diisocyanate mass percentage are 49%, and cetomacrogol 1000 mass percentage is 25%,
Dibutyl tin laurate mass percentage is that 1%, 1- '-aziridino ethyl alcohol mass percentage is 10%, butanone quality hundred
It is 15% to divide content；
The carbon nanomaterial is made of the raw material of following mass percentage：
Graphene mass percentage is 4%-6%, and carbon nanotube mass percentage composition is 5%-8%；Carbon nano-onions
Mass percentage is 3%-8%, and surplus is oxidant, and oxidant used is potassium permanganate and the mixture of the concentrated sulfuric acid.
The preparation method of nano modification elastic coating in the present embodiment (and following each embodiments) is as follows：
(1) polyurethane acroleic acid fat component is prepared：
It is weighed based on following mass percentages：
Toluene-2,4-diisocyanate, 4- diisocyanate mass percentage be 10%-20%, isoflurane chalcone diisocyanate quality percentage
Content is 10%-20%, and 2000 mass percentage of polyester is 20%-30%, and 1,4-butanediol mass percentage is 20%-
30%, acrylic acid hydroxyl second fat mass percentage is 19%-20%, dibutyl tin dilaurate mass percentage 0.1%-
0.5%, it is 0.1%-0.5% to methoxyl group phenol mass percentage；
In the three-necked flask equipped with agitating device, condensing unit and temperature regulating device, add in polyester 2000, in 120 DEG C into
Row vacuum distillation, is dehydrated 1-1.5h；Addition Toluene-2,4-diisocyanate, 4- diisocyanate, isoflurane chalcone diisocyanate and 1,4-butanediol,
Reaction temperature is set as 30 DEG C, adds in dibutyl tin dilaurate, reacts 2-4h；Add in acrylic acid hydroxyl second fat and to methoxyl group
Phenol, adjustment reaction temperature is 40 DEG C, and the reaction was continued；Titrating isocyanic acid, extremely value up to isocyanic acid, extremely less than 0.5%, reacted by value
Into to get polyurethane acroleic acid fat component；
(2) end '-aziridino polyurethane cross-linking agent is prepared：
It is weighed based on following mass percentages：
Toluene-2,4-diisocyanate, 4- diisocyanate mass percentage are 49%-50%, and cetomacrogol 1000 mass percentage is
25%-30%, dibutyl tin laurate mass percentage are 1%-2%, and 1- '-aziridino ethyl alcohol mass percentages are
10%-15%, butanone mass percentage are 3%-15%；
Cetomacrogol 1000 is added in molten with being heated in spherical condensation tube and churned mechanically there-necked flask, under 50 DEG C of water-baths
To change, then add in dibutyl tin laurate, be stirring evenly and then adding into Toluene-2,4-diisocyanate, 4- diisocyanate is warming up to 80 DEG C,
Butanone solution the reaction was continued the 1.5h dissolved with 1- '-aziridino ethyl alcohol is added in after reacting 1.5h, discharging obtains end nitrogen
Third piperidinyl polyurethane cross-linking agent；
(3) carbon nanomaterial is prepared：
It is weighed based on following mass percentages：
Graphene mass percentage is 4%-6%, and carbon nanotube mass percentage composition is 5%-8%；Carbon nano-onions
Mass percentage is 3%-8%, and oxidant mass percentage is 1%-3%, and surplus is deionized water；
Graphene, carbon nanotubes, carbon nano-onions and oxidant are added in three-necked flask, stirred, is then slowly added
Enter deionized water, and be warming up to 98 DEG C, be stirred to react 30min, after being 7 by solution centrifuge washing to filtrate pH, ultrasonic 30min,
It is finally dried using freeze drier, prepares carbon nanomaterial；
(4) nano modification elastic coating is prepared：
It is weighed based on following mass percentages：
The mass percentage of polyurethane acroleic acid fat component is 65%-80%, end '-aziridino polyurethane cross-linking agent
Mass percentage is 10%-15%, and carbon nanomaterial mass percentage is 5%-25%,
Polyurethane acroleic acid fat component and end '-aziridino polyurethane cross-linking agent are mixed, stirred at room temperature in three-necked flask
72h is mixed, carbon nanomaterial is added in three-necked flask, makes it homodisperse in the mixture, prepares nano modification elasticity
Coating.
Embodiment 2
The present embodiment is related to a kind of nano modification elastic coating, gathers including polyurethane acroleic acid fat component, end '-aziridino
Urethane crosslinking agent and carbon nanomaterial, the mass percentage of the polyurethane acroleic acid fat component is 70%, holds '-aziridino
The mass percentage of polyurethane cross-linking agent is 15%, and carbon nanomaterial mass percentage is 15%,
The polyurethane acroleic acid fat component, is reacted by the raw material of following mass percentage：
Toluene-2,4-diisocyanate, 4- diisocyanate mass percentage be 10%-20%, isoflurane chalcone diisocyanate quality percentage
Content is 10%-20%, and 2000 mass percentage of polyester is 20%-30%, and 1,4-butanediol mass percentage is 20%-
30%, acrylic acid hydroxyl second fat mass percentage is 19%-20%, dibutyl tin dilaurate mass percentage 0.1%-
0.5%, it is 0.1%-0.5% to methoxyl group phenol mass percentage；
The end '-aziridino polyurethane cross-linking agent, is reacted by the raw material of following mass percentage：
Toluene-2,4-diisocyanate, 4- diisocyanate mass percentage are 49%, and cetomacrogol 1000 mass percentage is 25%,
Dibutyl tin laurate mass percentage is that 1%, 1- '-aziridino ethyl alcohol mass percentage is 10%, butanone quality hundred
It is 15% to divide content；
The carbon nanomaterial is made of the raw material of following mass percentage：
Graphene mass percentage is 4%-6%, and carbon nanotube mass percentage composition is 5%-8%；Carbon nano-onions
Mass percentage is 3%-8%, and surplus is oxidant, and oxidant used is potassium permanganate and the mixture of the concentrated sulfuric acid.
Embodiment 3
The present embodiment is related to a kind of nano modification elastic coating, gathers including polyurethane acroleic acid fat component, end '-aziridino
Urethane crosslinking agent and carbon nanomaterial, the mass percentage of the polyurethane acroleic acid fat component is 80%, holds '-aziridino
The mass percentage of polyurethane cross-linking agent is 15%, and carbon nanomaterial mass percentage is 5%,
The polyurethane acroleic acid fat component, is reacted by the raw material of following mass percentage：
Toluene-2,4-diisocyanate, 4- diisocyanate mass percentage be 10%-20%, isoflurane chalcone diisocyanate quality percentage
Content is 10%-20%, and 2000 mass percentage of polyester is 20%-30%, and 1,4-butanediol mass percentage is 20%-
30%, acrylic acid hydroxyl second fat mass percentage is 19%-20%, dibutyl tin dilaurate mass percentage 0.1%-
0.5%, it is 0.1%-0.5% to methoxyl group phenol mass percentage；
The end '-aziridino polyurethane cross-linking agent, is reacted by the raw material of following mass percentage：
Toluene-2,4-diisocyanate, 4- diisocyanate mass percentage are 49%, and cetomacrogol 1000 mass percentage is 25%,
Dibutyl tin laurate mass percentage is that 1%, 1- '-aziridino ethyl alcohol mass percentage is 10%, butanone quality hundred
It is 15% to divide content；
The carbon nanomaterial is made of the raw material of following mass percentage：
Graphene mass percentage is 4%-6%, and carbon nanotube mass percentage composition is 5%-8%；Carbon nano-onions
Mass percentage is 3%-8%, and surplus is oxidant, and oxidant used is potassium permanganate and the mixture of the concentrated sulfuric acid.
Implementation result
Finally it should be noted that：The foregoing is merely the preferred embodiments of the present invention, are not intended to limit the invention, to the greatest extent
Pipe is with reference to the foregoing embodiments described in detail the present invention, for those skilled in the art, still can be with
It modifies to the technical solution recorded in foregoing embodiments or equivalent substitution is carried out to which part technical characteristic.It is all
Within the spirit and principles in the present invention, any modifications, equivalent replacements and improvements are made should be included in the guarantor of the present invention
Within the scope of shield.
Claims (9)
1. a kind of nano modification elastic coating, which is characterized in that including polyurethane acroleic acid fat component, end '-aziridino polyurethane
Crosslinking agent and carbon nanomaterial,
The polyurethane acroleic acid fat component, is reacted by the raw material of following mass percentage：
Toluene-2,4-diisocyanate, 4- diisocyanate mass percentage be 10%-20%, isoflurane chalcone diisocyanate mass percentage
For 10%-20%, 2000 mass percentage of polyester is 20%-30%, and 1,4-butanediol mass percentage is 20%-
30%, acrylic acid hydroxyl second fat mass percentage is 19%-20%, dibutyl tin dilaurate mass percentage 0.1%-
0.5%, it is 0.1%-0.5% to methoxyl group phenol mass percentage；
The end '-aziridino polyurethane cross-linking agent, is reacted by the raw material of following mass percentage：
Toluene-2,4-diisocyanate, 4- diisocyanate mass percentage are 49%-50%, and cetomacrogol 1000 mass percentage is
25%-30%, dibutyl tin dilaurate mass percentage are 1%-2%, and 1- '-aziridino ethyl alcohol mass percentages are
10%-15%, butanone mass percentage are 3%-15%；
The carbon nanomaterial is made of the raw material of following mass percentage：
Graphene mass percentage is 4%-6%, and carbon nanotube mass percentage composition is 5%-8%；Carbon nano-onions quality
Percentage composition is 3%-8%, and surplus is oxidant.
2. nano modification elastic coating according to claim 1, which is characterized in that the matter of the urethane acrylate component
Amount percentage composition is 65%-80%, holds the mass percentage of '-aziridino polyurethane cross-linking agent as 10%-15%, carbon nanometer
Quality of materials percentage composition is 5%-25%.
3. nano modification elastic coating according to claim 1, which is characterized in that the nano modification elastic coating also wraps
Antifoaming agent is included, the antifoaming agent mass percentage is 0.5%~2%.
4. nano modification elastic coating according to claim 1, which is characterized in that the antifoaming agent is by mineral oil, hard charcoal
Black, emulsifier, dispersant, aluminum stearate are made.
5. nano modification elastic coating according to claim 1, which is characterized in that the nano modification elastic coating also wraps
Include antifreezing agent, wetting dispersing agent, coalescents.
6. nano modification elastic coating according to claim 1, which is characterized in that oxidant used in the carbon nanomaterial
For potassium permanganate and the mixture of the concentrated sulfuric acid.
7. the preparation method of nano modification elastic coating according to claim 1, which is characterized in that include following step：
(1) polyurethane acroleic acid fat component is prepared：
It is weighed based on following mass percentages：
Toluene-2,4-diisocyanate, 4- diisocyanate mass percentage be 10%-20%, isoflurane chalcone diisocyanate mass percentage
For 10%-20%, 2000 mass percentage of polyester is 20%-30%, and 1,4-butanediol mass percentage is 20%-
30%, acrylic acid hydroxyl second fat mass percentage is 19%-20%, dibutyl tin dilaurate mass percentage 0.1%-
0.5%, it is 0.1%-0.5% to methoxyl group phenol mass percentage；
In the three-necked flask equipped with agitating device, condensing unit and temperature regulating device, polyester 2000 is added in, is subtracted in 120 DEG C
Pressure distillation, is dehydrated 1-1.5h；Add in Toluene-2,4-diisocyanate, 4- diisocyanate, isoflurane chalcone diisocyanate and 1,4-butanediol, setting
Reaction temperature is 30 DEG C, adds in dibutyl tin dilaurate, reacts 2-4h；It adds in acrylic acid hydroxyl second fat and to methoxyl group phenol, adjusts
Whole reaction temperature is 40 DEG C, and the reaction was continued；Titrate isocyanic acid extremely value until isocyanic acid extremely value less than 0.5%, reaction complete to get
Polyurethane acroleic acid fat component；
(2) end '-aziridino polyurethane cross-linking agent is prepared：
It is weighed based on following mass percentages：
Toluene-2,4-diisocyanate, 4- diisocyanate mass percentage are 49%-50%, and cetomacrogol 1000 mass percentage is
25%-30%, dibutyl tin laurate mass percentage are 1%-2%, and 1- '-aziridino ethyl alcohol mass percentages are
10%-15%, butanone mass percentage are 3%-15%；
Cetomacrogol 1000 is added in in spherical condensation tube and churned mechanically there-necked flask, fusing is heated under 50 DEG C of water-baths,
Then dibutyl tin laurate is added in, is stirring evenly and then adding into Toluene-2,4-diisocyanate, 4- diisocyanate is warming up to 80 DEG C,
Butanone solution the reaction was continued the 1.5h dissolved with 1- '-aziridino ethyl alcohol is added in after reacting 1.5h, discharging obtains end aziridine
Based polyurethanes crosslinking agent；
(3) carbon nanomaterial is prepared：
It is weighed based on following mass percentages：
Graphene mass percentage is 4%-6%, and carbon nanotube mass percentage composition is 5%-8%；Carbon nano-onions quality
Percentage composition is 3%-8%, and oxidant mass percentage is 1%-3%, and surplus is deionized water；
Graphene, carbon nanotubes, carbon nano-onions and oxidant are added in three-necked flask, stirs, is then slowly added into
Ionized water, and 98 DEG C are warming up to, 30min is stirred to react, after being 7 by solution centrifuge washing to filtrate pH, ultrasonic 30min, finally
It is dried using freeze drier, prepares carbon nanomaterial；
(4) nano modification elastic coating is prepared：
It is weighed based on following mass percentages：
The mass percentage of polyurethane acroleic acid fat component is 65%-80%, holds the quality of '-aziridino polyurethane cross-linking agent
Percentage composition is 10%-15%, and carbon nanomaterial mass percentage is 5%-25%,
Polyurethane acroleic acid fat component and end '-aziridino polyurethane cross-linking agent are mixed, stirred at room temperature in three-necked flask
Carbon nanomaterial is added in three-necked flask by 72h, makes it homodisperse in the mixture, is prepared nano modification elasticity and is applied
Material.
8. the preparation method of nano modification elastic coating according to claim 7, which is characterized in that the carbon nanomaterial
During preparation, graphene, carbon nanotubes, carbon nano-onions and oxidant are added in three-necked flask, under conditions of ice-water bath, magnetic
Son stirring 3h, is warming up to 35 DEG C, stirs 30min, be then slowly added into deionized water afterwards.
9. the preparation method of nano modification elastic coating according to claim 7, which is characterized in that the preparation nanometer changes
Property elastic coating step in, carbon nanomaterial is added in three-necked flask, under the conditions of high speed dispersor 7000r/min disperse
30min, then be placed in the ultrasonic cleaning machine of 360W, controlled at room temperature, ultrasonic disperse 1h prepares nano modification elasticity and applies
Material.
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